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From: randy@uw-june.UUCP (William Randy Day)
Newsgroups: comp.dcom.lans
Subject: Ethernet protocol numbers
Message-ID: <3383@uw-june.UUCP>
Date: Mon, 26-Oct-87 18:02:54 EST
Article-I.D.: uw-june.3383
Posted: Mon Oct 26 18:02:54 1987
Date-Received: Wed, 28-Oct-87 22:51:09 EST
Organization: U of Washington, CSCI, Seattle
Lines: 61

In looking at the ethernet packets flying across our network, I've
discovered some ethernet protocol (ether type fields) that I
don't recognize. The protocol numbers I do recognize are:

      0x0200: XEROX PUP
      0x0201: PUP Addr. Trans.
      0x0600: XNS
      0x0800: IP
      0x0801: X.75 Internet
      0x0802: NBS Internet
      0x0803: ECMA Internet
      0x0804: Chaosnet
      0x0805: X.25 Level 3
      0x0806: ARP
      0x0807: XNS Compatability
      0x081C: Symbolics
      0x1001: IP_trailer_1_block
      0x1002: IP_trailer_2_block
      0x1003: IP_trailer_3_block
      0x1004: IP_trailer_4_block
      0x1005: IP_trailer_5_block
      0x1006: IP_trailer_6_block
      0x1007: IP_trailer_7_block
      0x1008: IP_trailer_8_block
      0x1009: IP_trailer_9_block
      0x100a: IP_trailer_10_block
      0x100b: IP_trailer_11_block
      0x100c: IP_trailer_12_block
      0x100d: IP_trailer_13_block
      0x100e: IP_trailer_14_block
      0x100f: IP_trailer_15_block
      0x6001: DEC remote load request
      0x6002: DEC_MOP
      0x6003: Decnet
      0x6004: DEC_LAT
      0x8003: Cronus VLN
      0x8004: Cronus Direct
      0x8006: Nestar
      0x8010: Excelan
      0x8035: RARP
      0x8038: DEC Debet bridge management
      0x8080: Vitalink bridge management
      0x809B: Kinetics Appletalk-Ethernet
      0x9000: Loopback
      0x9001: Bridge bridge management
      0x9002: Bridge terminal servers

Two other protocol numbers have appeared with regularity:
      0x501: ?
      0x3a92: ?

Besides these, I have seen 0x38 and 0x1b, but I'm willing to believe these
are mistakes.

Does anybody know what these unknown protocol numbers refer to?

Thanks,
Randy Day.
Internet (ARPA): randy@cs.washington.edu
CSNET: randy%washington@relay.cs.net
UUCP: {decvax|ihnp4}!uw-beaver!uw-june!randy